I haven't tried the Notch, but I have a couple of Tarptent single wall tents (Squall II and Rainshadow) and am very happy with them. They do have to be seam-sealed, as do all silnylon tents, but Tarptent provides seam sealing service . If I were looking for a single person tent, I'd go for their 26 oz. Protrail.
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May your trails be crooked, winding, lonesome, dangerous, leading to the most amazing view--E. Abbey